Rivera-Ortega Uriel, Meneses-Fabian Cruz, Rodriguez-Zurita Gustavo
Facultad de Ciencias Físico-Matemáticas, Benemérita Universidad Autónoma de Puebla, Apdo. Postal 165, Puebla, Pue. 72000, México.
Opt Express. 2013 Jul 29;21(15):17421-34. doi: 10.1364/OE.21.017421.
A new method in interferometry based on on-off non-quadrature amplitude modulation for object phase retrieval is presented. Although the technique introduces inhomogeneous visibility and phase variations in the interferogram, it is shown that the phase retrieval of a given object is still possible. This method is implemented by using three beams and two Mach-Zehnder interferometers in series. One of the arms of the system is used as a probe beam and the other two are used as reference beams, yielding from their sum the conventional reference beam of a two-beam interferometer. We demonstrate that, if there is a phase difference within the range of (0,π) between these two beams, the effect of modulation in both amplitude and phase is generated for the case of on-off non-quadrature amplitude modulation. An analytical discussion is provided to sustain this method. Numerical and experimental results are also shown.
提出了一种基于通断非正交幅度调制的干涉测量新方法，用于物体相位恢复。尽管该技术会在干涉图中引入不均匀的可见度和相位变化，但结果表明，给定物体的相位恢复仍然是可行的。该方法通过使用三个光束和两个串联的马赫 - 曾德尔干涉仪来实现。系统的一个臂用作探测光束，另外两个用作参考光束，它们的总和产生了两光束干涉仪的传统参考光束。我们证明，如果这两个光束之间存在（0，π）范围内的相位差，则在通断非正交幅度调制的情况下会产生幅度和相位调制的效果。提供了分析讨论以支持该方法。还展示了数值和实验结果。
